Improvement in combined ore-crushers and amalgamators



MFETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D. C.

- ittica ditta.

LYMAN GRISWOIID, OE DENVER, 'COLORADO TERRITORY.

Letters Patent Nb. 112,804, dared nach 21. 1871.

vIMPROVEMENT IN COMBINED ORE-CRUSHERS ND`AMALGAMATORS.

The Schedule referred lto in these Letters Patent and making part of thesame.

To all whom yit may concern:

Be it known that I, LYMAN GRISWOLD, of Denver, in the county ofArapahoe, Colorado Territory, have invented a new and improved CombinedOre-Crusher and Amalgamator; and I do .hereby declare that t-hefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the same, referencebein had to the accompanying drawing forming part of? thisspeciiicatiou.

Figure l represents a side elevation, partly in section, of my improvedcrusber and amalgamator.

Figure 2 is a vertical transverse section of the same, takeri'on theplane ofthe line :c x, fig.`1.

Similar letters of reference indicate corresponding parts.

My invention relates to ore-crushers and amalgamators, and consists'incertain improvements, which will be first described in connection withall that is necessary to their full understanding, and then clearlypointed out in the claim.A

A in the drawing represents the case or box within 'which thecruslier-'dies B arel set up on the bottom a of the same.

The punches are secured to rods that pass through the trough-shapedcover b of the case, said punchesand rods being not shown-iu thedrawing. y

The cover b of the case A is made double inclined, so that it is deeperalong the middle than at the sides,

and serves-as a trough for the wat-er, by which the rods are lubricatedand the ore moistened.

The holes in said trough for the rods are larger than the rods, topermit the water to enter the case.

The middle portion of the A is somewhat enlarged, as shown in iig. 2, soas to constitute the chute C for inserting the ore, and opposite to saidchute, to receive the screenl).

The chute is formed in shape of a longitudinal hopper, extending fromend toeud of the case, and has its inner side open near the'bottom, todischarge its contents into the case. t

The bottom of thechute is inclined for guiding the ore properly to thedies.

The ends of the chute are, by platesc c, kept a dis'- tance oi the endsofthe case, so that the ore may be kept from the frames or levers usedfor clamping the amalgaInating-platcs, which are hereinafter described.

The screen D is secured in place by a frame, d, which is fastened bymeans of keys or wedges.

E E are the amalgainatingplates. They are secured in inclined positionsto the inner sides of the case A, and extend from end to end oi' thesame. They are preferably made oi'copperl Quicksilver is used in thecase during the crushing process. l

The plate E under the bottom of 'the chute is connected with alongitudinal Vstrip or plate, F, which is, by means of swingingyokesgand wedges h, secured against the opening in the side of the case A.

By swinging aside the yokes the strip F, with its `plate E,can, by meansof handles t', be readily removed.

The other platefE' slants off the inner face of 'the screen, and cau betaken out by'removing said screen.

The lower edges of both'plates-E E rest in grooved ribs j j, as shown,thev said ribs forming V-shaped projections for protecting the platesand preventing them from scouring.

The plates E E are held down by'rubber pads K, that are secured in or tothe inclined arins l of vertically-adjustable frames G, the said framesbeing arranged at the ends .of the case, and connected-at their upperends to pivoted levers-m m, by which the pads can be lifted o ii theplates. Y

Spring-catches o serve to hold the levers mmin'the lowered positions.

The plates c in the chute are i'or protecting the arms l, frames G, andpads It from the ore.

That sidev of thecase A, which is above the chute is made in form ot'aremovable plate, n, which is held in place by means of wedges andbolts. By its removal ready access can be had to the interior vofthecase.

The chute (l is'also made removable and secured in similar manner. Theinterior of the apparatus can thus be readily reached.

Similardevices heretofore made could not be opened at the sides, exceptby the removal oil. the screen, which is frequently insuicient to allowthe clearing up and removal oi' broken dies, shoes, Sac.

Having thus describedl my invention,

I claim as new and desire to secure by Letters Patent- 1. rlhe elasticpads l.: k, secured to the slidin g frames G, and connected with the'levers m, substantially' as herein shown and. described.

2. The chute C, having its inner side open and bottom inclined, and theplates c c colnbinedas described with case A, for thev purposespecified.

3. The plate E, combined as described, with strip `14", yoke g, wedge h,and handle i, for the purposegol' securing or detaching the said plate,as' set forth.

' LYMAN GRISWOLD.

Witnesses:

v FREDERICK GRANIER, .Tous I. HAsTINGs.

